Both cards are built on the same silicon foundation, sharing identical base clocks of 2017 MHz, memory speeds of 1750 MHz, and the full complement of 21,760 shading units, 680 TMUs, and 176 ROPs. This means the core rendering pipeline and memory subsystem behave identically under normal workloads, and both support Double Precision Floating Point — relevant for GPU-accelerated compute tasks beyond gaming.
The meaningful separation emerges at boost frequency. The Manli Stellar RTX 5090 OC reaches a higher GPU turbo of 2437 MHz versus the Gigabyte WindForce's 2407 MHz — a 30 MHz advantage that directly cascades into every derived throughput metric. The Manli edges ahead with 106.1 TFLOPS of floating-point performance against 104.8 TFLOPS, a 1657 GTexels/s texture rate versus 1637 GTexels/s, and a pixel rate of 428.9 GPixel/s compared to 423.6 GPixel/s. In practice, these gaps are in the 1–1.5% range, meaning real-world frame rate differences will typically fall within benchmark noise.
Based strictly on the provided specs, the Manli Stellar OC holds a narrow but consistent performance edge across every throughput metric due to its higher factory boost clock. For users prioritizing maximum out-of-the-box compute and rendering headroom, the Manli is the technical winner in this group — though the advantage is slim enough that thermal behavior and power delivery (not covered here) will likely matter more in sustained workloads.
